Hi,
It would be better if you can post these questions in the General forum instead of here. Quick answers below:
1- The framework does not ship with CE bits that said you could install the version you want. If this is not the case, then please post the error you are getting and I will follow up with the experts in this area.
2- True, I don't think that will change in this release. What are you concerns regarding this?
3- There is only one SyncAgent in the framework. As for Sync Services for ADO.NET v1, which just shipped with VS 2008, it had to have its own agent but in the CTP1 release we converged into one agent type.
Thanks